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Related Experiment Videos

Space motion sickness.

James R Lackner1, Paul Dizio

  • 1Ashton Graybiel Spatial Orientation Laboratory, Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454-9110, USA. lackner@brandeis.edu

Experimental Brain Research
|October 6, 2006
PubMed
Summary
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Space motion sickness is a common issue in spaceflight, not a unique condition. It occurs when movement happens in altered gravity, similar to Earth-based motion sickness.

Area of Science:

  • Space Medicine
  • Human Physiology
  • Aerospace Medicine

Background:

  • Space motion sickness (SMS) is a significant challenge for astronauts.
  • Understanding SMS is crucial for long-duration space missions.

Purpose of the Study:

  • To review current knowledge on SMS incidence, physiology, and etiology.
  • To evaluate treatments, theoretical models, and prediction methods for SMS.

Main Methods:

  • Literature review of space motion sickness research.
  • Analysis of proposed etiological factors and physiological mechanisms.
  • Critical evaluation of theoretical models and ground-based study paradigms.

Main Results:

  • SMS incidence and onset patterns are documented.

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  • Key etiological factors include fluid shifts, head movements, and altered gravity.
  • Current treatments and prediction tests have limitations.

    • Conclusions:

    • Space motion sickness is a form of motion sickness, not a distinct entity.
    • It arises from movement in non-Earth gravity environments (higher or lower than 1g).
    • Further research is needed to refine understanding and countermeasures.